Anaerobic washer



FIG. 1 is a front, top perspective view of an anaerobic washer;

FIG. 2 is a front view of the anaerobic washer, the rear, right-hand side and left-hand side views being mirror images thereof; and,

FIG. 3 is a top view of the anaerobic washer, the bottom view being a mirror image thereof. 

What is claimed is the ornamental design for the anaerobic washer, as shown and described. 